SF- Alex, Karin, Akuma, Dudley, Necro
Tekken- Miguel, Devil, Armor King, Steve, Jaycee
Also I saw a stream with a hacker using all the "DLC" characters in SFxT and here's my opinions:
-Cody: he's exactly the same like he was in SSF4, some new voice clips though, his SA is is U1 and he have new animations during it
-Guy: Not enough footage of him...
-Blanka: Electric Thunder looks different graphically, his voice sounds cooler now
-Sakura: Her English voice IS SO ANNOYING!!!!.....she had a ridiculous juggle she did 3 shoryukens and all of em juggled....her SA is his U1 from SSF4 and have a new cinematic during the air finish of it
-Dudley: Pretty much the same from SSF4, his English voice got more lame
but his chains are SICK!!!..his SA is Rolling Thunder (what a shame) though he never connected it :/
-Elena: Beautiful!!!!....she looks fluid and amazing on motion....definitely the "steal" of the new SF chars
-Lars: the guy got style!!....so flashy and slick lookin'!!!!
-Alissa: she's cute ♥, her throw is hilarious and her missiles annoying, chainsaws remind me of Frank West LOL
-Lei: he looks weird :/ and his SA its lame....glad he has his stances
-Christie: Elena outshines her in everything!!!!.....waste of slot IMO
-Bryan: WHAT A BADASS!!!!!.....love the sadistic personallity and his moves look vicious as hell!!!....his facial expressions are crazy and they nailed the laugh xD
-JACK X: the Sentinel of SFxT...his SA its fullscreen he does an horizontal "Rocket Punch" opponent wallbounces and starts gattling punchin his foe while in the air.